Oatmeal Cake with Pecan Frosting Oatmeal cake with pecan frosting is a classic snack cake that has been around for many years. You have a moist and hearty oatmeal cake with a coconut pecan frosting, that will melt in your mouth. Some like to call this the grandma cake because many know this recipe because grandma used to make it all the time. I love to bake for my family; it is a fun way to test out new recipes and serve up sweet treats for the family. With the holidays upon us, it has me in ...